31980530

Names of 31980530

• Cardinal: 31980530 can be written as Thirty-one million, nine hundred eighty thousand, five hundred thirty.

Scientific notation

• Scientific notation: 3.198053 × 10⁷

Factors of 31980530

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1562

Divisors of 31980530

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 31 62 71 142 155 310 355 710 1453 2201 2906 4402 7265 11005 14530 22010 45043 90086 103163 206326 225215 450430 515815 1031630 3198053 6396106 15990265 31980530
• Sum of all divisors σ(n): 60300288
• Sum of proper divisors (its aliquot sum) s(n): 28319758
• 31980530 is a deficient number, because the sum of its proper divisors (28319758) is less than itself. Its deficiency is 3660772

Bases of 31980530

• Binary: 1111001111111101111110010₂
• Hexadecimal: 0x1E7FBF2
• Base-36: J1GC2

Squares and roots of 31980530

• 31980530 squared (31980530²) is 1022754299080900
• 31980530 cubed (31980530³) is 32708224544385694877000
• The square root of 31980530 is 5655.1330665157
• The cube root of 31980530 is 317.4158083751

Scales and comparisons

• 31,980,530 seconds is equal to 1 year, 6 days, 3 hours, 28 minutes, 50 seconds.
• To count from 1 to 31,980,530 would take you about twenty-seven weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 31980530 cubic inches would be around 26.5 feet tall.

Recreational maths with 31980530

• 31980530 backwards is 03508913
• The number of decimal digits it has is: 8
• The sum of 31980530's digits is 29
• More coming soon!